let, A'= Aa^2 + Bab + cb^2 B'= 2 Aac+B(ad+bc)+2cbd c'= Ac^2+ Bcd + cd^2 show that (  B'^2_ 4A'c')= (B^2_ 4AC) (ad_bc)²

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.3: Algebraic Expressions
Problem 40E
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let, A'= Aa^2 + Bab + cb^2

B'= 2 Aac+B(ad+bc)+2cbd

c'= Ac^2+ Bcd + cd^2

show that (  B'^2_ 4A'c')= (B^2_ 4AC) (ad_bc)²

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